baber/WOPTO huggingface dataset:
Patent GB-784753-A (GB)
Title: Improvements in or relating to slideway grinding machines
IPC: B24B7/14
Filed: 1955-03-21
Abstract: 784,753. Slideway grinders. GES. DER L. VON ROLL'SCHEN EISENWERKE AKT.- GES. March 21, 1955 [March 20, 1954], No. 8186/55. Class 60. A machine for grinding slideways, particularly of the beds of lathes, planing machines, millers and grinders, comprises a carriage 101 to which the workpiece 102 is secured and which is arranged for reciprocation on a bed 103 under a crossbeam 1 extending transversely of the direction of reciprocation of the carriage. The front of the beam 1 has guideways 2 for main slides carrying grinding wheels 11, 11a. The underside of the beam 1 has additional guideways 4, 5 for a slide 6 displaceable horizontally by a screw 8, the slide being provided with clamping bolts 12, 13 hydraulically controlled by handwheel 10. A vertical dovetail guide 6a on the slide 6 supports a slide 14 vertically adjustable by a threaded spindle 17. Fine adjustment is effected by a handwheel 23 on a shaft 22a carrying a worm 22 meshing with a worm gear 21 on the spindle 17. The shaft 22a is eccentrically mounted in a bush 22b which can be turned by a lever 22c to disengage the worm 22 from the worm gear 21 to permit coarse adjustment by a handwheel 20 on the spindle 17. The slide 14 has an arm 25 in which is mounted the bearing bush 26 of the spindle 27 of a grinding wheel 29, the spindle being driven through belt 33 by a motor 31 carried by the slide 14. The vertical adjustment of the grinding wheel 29 may be effected without displacing the slide 14; the spindle 27 is mounted in an axially shiftable bush 35 in the slide 14, the bush 35 being provided with a thread 36 engaging a nut 37, the bush 35 also having a toothed rim 38 engaged by a worm 39 on shaft 40. Fine adjustment is effected by turning shaft 40 with nut 37 locked, and coarse adjustment by turning the nut 37.
Patent GB-622447-A (GB)
Title: Improvements in mechanism for operating sliding doors and the like
IPC: E05F11/34
Filed: 1947-03-26
Abstract: 622,447. Door operating-appliances. MARTINEZ, H. March 26, 1947, No. 8242. [Class 65 (i)] The sliding door q of a pan mill is moved in its own plane by mechanism which comprises an operating rod h pivotally connected to a bolt p carried by the door, a block g<SP>1</SP> adapted to move between stops j and m on the rod, and a spring k interposed between the block and one of the stops. The block is connected by a link f to an operating crank e and is swung thereby upon a lever r about a fixed pivot s. The door is adapted to close before the crank and link are aligned to effect compression of the spring in the aligned position. Movement of the crank beyond the said position is limited by the latter coming against the floor d of the pan, whereby the door is held closed by the pressure of the spring.
Patent GB-526394-A (GB)
Title: Improvements relating to the mounting of shelves for display devices
IPC: A47F3/12
Filed: 1939-03-15
Abstract: 526,394. Shelf brackets. HOUGHTON, G. G., and HOUGHTON, L. S., [trading as HOUGHTON, A. B. & G. G.]. March 15, 1939, No. 8261. [Class 52 (v)] A blade spring 7 is fitted to the lower arm 4b of a bracket for a glass shelf 8 and holds the shelf in engagement with an adjustable clamp screw 9 carried in a horn member 4c. The rear part 5 of the recess formed in the bracket is deeper than the mouth to enable the shelf to be tilted. The lower arm is T-shaped, the front being bowed downwards. The head of the rivet of the spring may engage a shallow recess in the shelf. Specification 429,295 is referred to.
Patent GB-232574-A (GB)
Title: Improvements in or relating to beams, spars and like structural elements
IPC: B64C1/06
Filed: 1925-03-27
Abstract: 232,574. Dewoitine, E. J. E. April 16, 1924, [Convention date]. Framework.-A plate member for a built-up beam or spar exposed to the force of flexion, is constructed to diminish in thickness from the point of support. Fig. 1, shows a wing spar plate a having near its longitudinal edges on its under surface two ribs b to which the webs of the spar are attached. The plates and ribs may be originally made of uniform thickness and subsequently reduced towards the free end of the spar by planing or sawing. In the modification shown in Fig. 3, the plate c is lightened by forming it with cells running along its length. The plate may be formed of two parts, d, e, Fig. 4, having projecting webs g, which when the parts are fixed together form longitudinal cells. In all the constructions additional strengthening ribs may be provided on the beams between the ribs b.
Patent GB-927243-A (GB)
Title: Improvements in fastening for inherently slippery fabric on tubular metal furniture
IPC: A47C7/22
Filed: 1961-03-07
Abstract: 927,243. Seats. M. I. THOMAS. March 7, 1961, No. 8277/61. Class 52 (2). [Also in Group XXV] A fastening for securing fabric 10 on tubular metal furniture comprises a tubular metal frame member 7 having a slot 9, a metal fastener plate 11 shaped to the approximate shape of the frame member 7, the plate 11 having a smooth edge 12 about which the fabric is looped, a roughened edge 14 and a prong 15 inclined to the edge 14 at an acute angle and adapted to engage the slot 9, the prong 15 being wedged against the edge of the slot thereby drawing the plate 11 towards and holding the same in close fitting engagement with the tubular member 7 with the edge 14 of the plate in clamping engagement with the underlying end part 16 of the fabric 10. Instead of being continuously roughened or toothed the edge 14 may have a broken portion 17 (Fig. 5).
Patent GB-853792-A (GB)
Title: New benzothiazole derivatives and their salts and process for the production thereof
IPC: C07D277/82
Filed: 1959-03-10
Abstract: The invention comprises compounds of the general formula: <FORM:0853792/IV(b)/1> and their acid addition salts (wherein Bz is a benzothiazolyl-2-radical substituted by 1 or 2 halogen atoms, R1 and R2 are straight or branched alkylene radicals containing together not more than 6 carbon atoms, and Am a mono- or dialkylamino group containing not more than 8 carbon atoms or a pyrrolidino, piperidino or morpholino group), and the preparation thereof by reacting a compound of the general formula:  Bz-NH-CO-R1-halogen with a compound of the general formula:  HS-R2-Am in acetonitrile as solvent. 2-Chloroacetylamino -6 - chloro - benzothiazole is made from chloroacetylchloride and 2-amino-6-chloro-benzothiazole. 2-Amino- 4, 6-dichloro-benzothiazole is made from ammonium thio-cyanate and 2, 4-dichloro-aniline.  Specification 751,172 is referred to.
Patent GB-231855-A (GB)
Title: Drive for hoisting apparatus for ships and like long bodies
IPC: H02P5/69
Filed: 1925-03-27
Abstract: 231,855. Siemens - Schuckertwerke Ges. April 1, 1924, [Convention date]. Systems for continuous-current motors only; speed maintaining systems.-In hoisting apparatus for a, long object, e.g. a ship, in which a series of electric motors is used which are nos automatically connected together, but which are automatically regulated during the whole lifting operation in dependence upon the lift, they are to produce, starters are provided for the motors which are positively switched in to the same extent and switched out by mechanical connections with the suspension points. The motors 2 are connected by worm gearing 6 to starters 5, the brushes 3 of which are mounted on a shaft driven through worm gearing 4 by an auxiliary motor 1. When the motor 1 is started, the brushes 3 are moved in the clockwise direction, and the motors 2 are switched in. As soon as the motors 2 start, the starters 5 are turned in the clockwise direction, and when the motors reach the same speed, each brush is on a similar contact. If one motor runs at a different speed to the others, its brush will advance or recede on its starter, so that it will receive a stronger or weaker current and its speed will increase or decrease, until it is the same as that of the others. In a modification the motors are driven in the known Leonard connection, and the field regulators of the Leonard dynamo take the place of the starters.
Patent GB-1048592-A (GB)
Title: Small electric motor
IPC: H02K3/00
Filed: 1964-02-27
Abstract: 1,048,592. Electric motors. E. WEISS. Feb. 27, 1964 [March 5, 1963; May 18, 1963], No. 8307/64. Heading H2A. A small, e.g. miniature, electric motor which is required to be noiseless for installation in, e.g., a magnetic sound-recording apparatus, comprises, located inside a stator having at least two diametrically opposite poles, a grooveless laminated ferromagnetic rotor on the fully cylindrical outer surface of which is provided a drum winding secured against sliding circumferentially of the rotor, there being mounted on the rotor shaft 1 in end engagement with opposite ends of the rotor two insulating discs of equal diameter to the rotor and having diametrically opposite finger-like projections 4 between each adjacent pair of which is wound a coil 5 of the winding. The winding wire insulation may be thermoplastic which, after the winding is wound, is heated to secure the winding. The discs may be of cardboard or thermoplastic material, coloured for checking purposes, and their projections are radial as shown or axial in a modification, Figs. 8 ... 12, not shown. The stator comprises within a tubular yoke housing one or more permanent magnets, e.g. alnico, or a radially magnetized ferrite ring which permits a large rotor to stator air-gap.
Patent GB-1496866-A (GB)
Title: 4,6,6-trimethyl-2,4,5,6-tetrahydrocyclopenta(c)pyrrole-4-carboxamides
IPC: C07D209/52
Filed: 1976-03-02
Abstract: 1496866 4,6,6 - Trimethyl - 2,4,5,6 - tetrahydrocyclopentapyrrole - 4 - carboxamides STERLING DRUG Inc 2 March 1976 [17 March 1975] 08385/76 Heading C2C Novel 4,6,6 - trimethyl - 2,4,5,6 - tetrahydrocyclopentapyrrole - 4 - carboxamide derivatives having the general formula wherein one of R 1  and R 3  is hydrogen or alkyl and the other is either (a) a group of the formula CH 2 OR 4 , where R 4  is carboxyalkanoyl or the ammonium salt thereof, alkanoyl, benzoyl or alkyl-substituted benzoyl, or (b) a group of the formula wherein R 5  is hydrogen or alkyl; R 6  is phenyl, alkenyl, cyano, alkyl, alkynyl, carboalkoxyalkylene, or carboalkoxyalkynyl; and R 2  is alkyl or phenyl, are prepared by either (i) reacting a compound of the Formula I wherein R 4  is hydrogen with a carboxyalkanoyl, alkanoyl, benzoyl or alkyl-substituted benzoyl halide or anhydride in the presence of an acid acceptor to give a compound of the invention wherein one of R 1  and R 3  is a group of the formula CH 2 OR 4  and R 4  is carboxyalkanoyl, alkanoyl, benzoyl or alkyl-substituted benzoyl, and optionally converting the compound wherein R 4  is carboxyalkanoyl to the ammonium salt thereof by reaction with ammonia, or (ii) reacting a compound of Formula I wherein one of R 1  and R 3  is formyl with an organolithium or an organomagnesium halide corresponding to R 6 , and hydrolysing the resulting organo metallic compound to give a compound of the invention wherein one of R 1  and R 3  is a group of the Formula II wherein R 5  is hydrogen and R 6  is as defined above.
Patent GB-472482-A (GB)
Title: Improvements in time-delay electric switches
IPC: G04F1/00
Filed: 1936-03-20
Abstract: 472,482. Press - button retractive switches ; snap-action switches. URIGA, L., and LEWIN, H. March 20, 1936, No. 8391. [A Specification was laid open to inspection under Sect. 91 of the Acts, Sept. 22, 1936.] [Class 38 (v)] In a press-button switch in which the button 45 carries an elastic suction cup 2 adapted to be pressed flat against a plate 1 when the switch is operated, the button when released returning to its original position after a time interval determined by the slow entry of air into the cup through a vent 17 the movable contact 43 is connected to the button by a spring and does not move till the spring has been sufficiently strained to force the contact 43 past a spring detent 49. The contact arm 43 is pivoted at 44 and is U- shaped and the spring 47 is coiled on the axle 44 the ends of the spring engaging the legs of the U and the centre of the spring forming a stirrup which engages' under a flange 51 of the button. The button is biassed by the usual return spring 10. To cause a quick return of the button at will a finger 21 is pressed inwardly lifting the rim of the cup at one point and admitting air. In a modification, Fig. 4 (not shown), the extent to which the suction cup is compressed is regulated by making the button in two parts, one screwing into the other, and the one part carrying a head which serves as an abutment. In another modification, Fig. 5 (not shown), the cup carries an adjustable abutment adapted to coact with the plate 1. Specifications 409,075 and 409,510 are referred to.
Patent GB-877144-A (GB)
Title: Means for automatically regulating the vertical height of motor vehicle bodies from their axles
IPC: B60G17/033
Filed: 1960-03-10
Abstract: 877,144. Maintaining vehicle height constant. DAIMLER-BENZ A.G. March 10, 1960 [March 11, 1959], No. 8501/60. Class 108(2). The height of a vehicle is automatically regulated by a control element for blocking the flow of freely circulated oil to cause it to be delivered past a non-return valve into hydro-pneumatic spring units on the axle to be adjusted. When the valve 11 is lifted by a decrease in vehicle height it interrupts the continuous circulation of oil by a pump 13 around a closed circuit 15, 16 to produce a rise in pressure causing a spring loaded non-return valve 30 to admit oil to the hydro-pneumatic springs 5 through conduits 10, 9. These conduits are placed in communication with the circuit 15, 16 by a groove 22 when the valve falls and the flow of oil from the springs is throttled by a pin 31 or by a choke in a port 19. The valve 8 controlling the front springs 3 is similar to the valve 11 but does not include a non-return valve 27 which prevents oil flowing from passage 18 into passage 19 when the springs 3 are being charged and the valve 11 is in the position for discharge. A stronger spring load is provided for the valve 29 controlling the springs.5 than for that controlling the springs 3 so that the latter can be charged while the valve 11 is in its normal position. The pump 13 may be driven continuously from the vehicle engine or be switched on when the vehicle door is opened.
Patent GB-194555-A (GB)
Title: Improvements relating to bedsteads
IPC: A47C17/52
Filed: 1922-03-23
Abstract: 194,555. Linn, W. H. March 23, 1922. Cabinet bedsteads.-The cabinet is mounted on legs L and comprises a pivoted front 1, a hinged lid 5, a bottom formed of a mattress 3 and a back consisting solely of a rail 4 to which the lid is hinged. A pivoted flap may however be provided, to fill the space between the mattress and the rail 4.
Patent GB-1030511-A (GB)
Title: Improvements in or relating to mixing valves
Inventor: STUHL BRUNO
IPC: F16K11/16
Filed: 1963-03-04
Abstract: 1,030,511. Valves. KARBER, WEBER & CIE ARMATURENFABRIK UND METALLGIESSEREI A.G. March 4, 1963, No. 8520/63. Heading F2V. A mixing valve has a longitudinal casing 11, Fig. 1, into the opposite ends of which open cold and hot water inlets 12, 13; the centre of the casing forms a mixing chamber 14 which embodies an outlet, not shown. The flow of water from each inlet to the chamber 14 is controlled by opposed valves, each consisting of a seat 15, an axially-movable closure-member 16, a valve stem 18, a valve stem guide 20, and a spring 21. The inner ends of the stems 18 engage a control member 19, the position of which determines the position of the closure member 16. The control member 19 is of frusto-conical shape mounted upon an axis a (Fig. 2, not shown) which is angularly displaced from the cone axis k. The quantity and temperature of water at the outlet is determined by two knobs 28, 31 which control the rotary and axial movements, respectively, of the member 19. The outer knob 31 may be replaced by a slotted screw head inside the inner knob 28. In a modification, the periphery of the control member is provided with an axial groove having a maximum depth at the upper end of the member and zero depth at the opposite end. Rotation of the control member firstly opens the cold water valve and then both gradually closes the latter and opens the hot water valve. Stops may be provided to limit the rotation of the control member.
Patent GB-1417604-A (GB)
Title: Recording device for tachographs
IPC: G01C23/00
Filed: 1973-02-21
Abstract: 1417604 Recording apparatus KIENZLE APPARATE GmbH 21 Feb 1973 [24 Feb 1972] 8538/73 Heading G1J A recording stylus 13 of a tachograph is selectively shiftable between several recording tracks by a setting member 11 controlled from outside the tachograph housing, the stylus being pivotally supported for limited universal movement by a first bearing 18 rigid with the housing, the bearing 18 reacting the axial force on the stylus which urges it against a record carrier, and a second bearing 12 in the setting member 11. In Fig. 1, the stylus 13 is urged towards the record carrier by a compression spring 20 and rests in annular knife-edge bearings formed by countersunk holes in the members 11, 18. The rear end of the stylus is upset adjacent a washer 23 to retain the stylus in the bearing 18. The selector member 11 is one arm of a bell-crank lever 8 the other arm 9 of which carries a pin 10 engaging in a slot 4 of a sector plate 3. A track selector knob 1 is rigid with a shaft 2 and the plate 3, a spring detent 5,6 holding the assembly 1, 2, 3 in any selected angular position. In Fig. 3, two recording styli 24, 25 are independently adjustable by track selector linkages mounted in a frame 26. Either of styli 24, 25 is oscillatable by a lever 59 pivoted at 60 and excited by a cam 62 to cause the oscillated stylus to record a bar diagram. To accommodate such oscillation, the arms 35, 47 of the bell-crank levers 34, 41 are flexible. The other arms 33, 43 of the levers 34, 41 carry resilient pawls 40, 48 which engage detent plates 38, 49 adjustably secured to the frame 26. The left hand selector linkage, Fig. 3, includes a pin- and-slot connection 32, 30 as in Fig. 1, while the right hand linkage has sector gears 31, 43 connected by a pinion 46.
Patent GB-1365504-A (GB)
Title: Convection propelled rotors for use in imitation flame effect  fires
IPC: F24C7/00
Filed: 1972-03-27
Abstract: 1365504 Imitation solid fuel fires E S CHARLTON 27 March 1972 [5 April 1971] 8652/71 Heading F4W A convection propelled rotor 1 for use in imitation solid fuel fires operated by an electric lamp 4 to give a flame effect, is characterized by being substantially transparent and of a shape to almost completely cover the electric lamp 4. The rotor is mounted on the lamp 4 by a pviot pin 3 engaging with a domed centre bearing 2. The blades of the rotor are preferably helical, and the body may comprise different colours with some opaque patches.
Patent GB-886582-A (GB)
Title: Improvements in helicopter blade control apparatus
Inventor: LEMONT HAROLD EDMINSTON
IPC: B64C27/30
Filed: 1960-03-11
Abstract: 886,582. Helicopters. BOEING AIRPLANE CO. March 11, 1960, No. 8654/60. Class 4. Centrifugally operated blade flapping control apparatus for a rotary wing aircraft has a rotor including a hub 16 and a blade mounted thereon for flapping movement, the apparatus maintaining the blade substantially at right angles to the axis of hub 16 when the rotational speed of the rotor is below a predetermined critical r.p.m., the apparatus having also a structure carried by and rotatable with the hub and including a toggle comprising three links 19, 23 and 25 arranged in an over-centre locked position interconnecting the structure and the blade, The blade is attached by a flapping hinge 14 to hub 16, on which is fixed a mast 15, to which are attached lugs 18 and 29. Pivoted to lug 18 is a link 19 and an arm 20, the other end of which is attached to weights 21 and to one end of two springs 30, which are attached at their other ends to lugs 29. Pivoted to the blade 13 at 26 is a second link 25, which incorporates a damper 28 and the counter-clockwise motion of which is limited by the roller 27 abutting against mast 15. Pivotally interconnecting links 19 and 25 is another link 23. When the angular velocity of the rotor is below a certain value, the linkage will remain in the over-centre locked position, Fig. 2, and the damper 28 will restrain the flapping motion of the blade. When, however, the centrifugal forces acting on the weights 21 exceed the tension in springs 30, link 19 will rotate anticlockwise, thus freeing the linkage. In this position, Fig. 3 (not shown), damper 28 is no longer effective, and blade flapping is limited only by the stops 31, 33.
Patent GB-125387-A (GB)
Title: Improvements in Acetylene Generators.
IPC: C10H13/00
Filed: 1919-04-05
Abstract: 125,387. Elektrizitatswerk Lonza. April 6, 1918, [Convention date]. Feeding carbide by means of a water-jet.-In an acetylene-generator particularly f o r use w i t h fine grained or dusty carbide, the carbide is fed from a hopper V provided with a controlling- device S through a pipe R provided with a water jet or jets D directed downwards and arranged to produce a suction beneath the feeding-device, and which carry the carbide beneath a hood H submerged in the water in the generator. The jet is preferably supplied with water saturated with acetylene obtained from the generator, with an addition of sufficient fresh water to keep the water level in the generator constant. To prevent air from being sucked in through the hopper, the upper part of the pipe R is connected through a pipe G to the hood H so that acetylene is circulated through the pipe R, the pressure of the acetylene in the upper-part of the pipe R being regulated by adjusting the height of the water in a. seal W so that no acetylene escapes through the hopper.
Patent GB-1537925-A (GB)
Title: Interferometer to measure small displacements
IPC: G02F1/05
Filed: 1976-03-04
Abstract: An interferometer, that simultaneously employs two phase-quadrature reference beams of coherent light which interfere with a signal beam of coherent light reflected from a spot of a displaceable signal mirror insonified by an ultrasonic wave, permits an output signal to be derived which is proportional to the sum of the squares of the ultrasonic frequency component of the interference between the signal beam and each respective one of the reference beams. This output signal is inherently substantially proportional to the intensity of the ultrasonic wave then insonifying the spot of the signal mirror and independent of random phase drift and environmental vibrations in the interferometer. The interferometric technique of the present invention, which permits the ultrasonic wave to be in the form of pulse bursts of only a few cycles so that the output signal can be range-gated, is suitable for use in an ultrasonic-wave measurement and image display system.
Patent GB-550533-A (GB)
Title: Improvements in and relating to variable-pitch airscrews
IPC: B64C11/42
Filed: 1941-07-09
Abstract: 550,533. Variable-pitch airscrews. MILNER, H. L. July 9, 1941, No. 8675. [Class 114] In a hydraulically-operated variable-pitch airscrew installation in which a governor-unit 24 is combined with an engine driven pump 15 for supplying the airscrew 10 with engine lubricating oil under pressure for normal operation, and in which the airscrew may be actuated, when desired, by an independent source 28 of pressure-fluid which is isolated from the said engine-lubricating oil by means of a piston 25 floating in a cylindrical reservoir 20, the latter is fitted with a controlling spring 36 to move the piston 25 in the opposite direction to the independent pressure supply 25, and, on such movement, a supply of oil is drawn into the cylinder 20, from the main lubricating-oil tank 33, independently of the supply from the engine-driven pump 15. A second spring 37 may be arranged above the piston 25. Spring-loaded non-return valves 18, 35, 22 are provided on the pump delivery, the independent oil supply, and the hydraulic motor supply pipes 17, 34, 21 respectively, the loading of the spring 18 being higher than that of the other two. Specification 517,372 is referred to.